Cahokia Mounds Show options Hide options Additional options Avoid highways Avoid tolls KM Miles Get Directions Print Directions This the largest and most influential urban settlement in the Mississippian culture, peaking 13th century AD. Name: Cahokia Mounds Lat, Long: 38.654374,-90.063137 Location: Collinsville, Illinois, USA January 14, 2014 Weird Historic Structures No Comment Americas SS Mortlake Bank Shipwreck SS Ayrfield Shipwreck Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment * * Yes, add me to your mailing list. Notify me of follow-up comments by email. Notify me of new posts by email.